Vacuum cleaner



FIG. 1 is a left front perspective view of a vacuum cleaner that has the design.

FIG. 2 is a right side view of the vacuum cleaner.

FIG. 3 is a left side view of the vacuum cleaner.

FIG. 4 is a top view of the vacuum cleaner.

FIG. 5 is a back side view of the vacuum cleaner; and,

FIG. 6 is a front view of the vacuum cleaner.

The bottom of the vacuum cleaner forms no part of the claimed design.

The broken line showing of the connector and points on the vacuum cleaner is for purpose of illustrating portions of the vacuum cleaner and forms no part of the claimed design. 

The ornamental design for a vacuum cleaner, as shown. 